Navigation and Weather Quiz

These questions and their answers are gleaned from the USCG Mariners Tests, and we trust in them for their accuracy. There are over 700 questions regarding weather and navigation here and all quiz questions are picked randomly. Questions are graded individually and you do not have to answer all questions to check your answers. Don't be discouraged if you miss a few questions, some of them are pretty hard. However, the more you take this test the more you will learn!

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Question 1 - A major advantage of the NAVTEX system when compared to other systems is that ...
) the information can be received on an ordinary FM radio
) warnings are printed out for reading when convenient
) broadcasts are at scheduled times
) a low frequency band is used for long distance transmission

Question 2 - The survey information upon which a chart is based is found ...
) at the top center of the next line
) near the chart title
) at the lower left corner
) at any convenient location

Question 3 - You would need to apply the conversion angle to an RDF bearing, prior to plotting the bearing on a chart, when the ship and the station are both on ...
) latitude 50° S, 200 miles apart
) longitude 50° W, 150 miles apart
) the equator, 175 miles apart
) latitude 30° N, 50 miles apart

Question 4 - A hygrometer is a device used for determining ...
) the absolute temperature
) atmospheric pressure
) wind velocity
) relative humidity

Question 5 - After the passage of a cold front the visibility..._
) does not change
) improves rapidly
) improves only slightly
) becomes poor

Question 6 - Daylight savings time is a form of zone time that adopts the time ...
) one zone to the east
) one zone to the west
) two zones to the east
) two zones to the west

Question 7 - When crossing the magnetic equator the ...
) Flinders bar should be inverted
) heeling magnet should be inverted
) the quadrantal spheres should be rotated 180°
) Flinders bar should be moved to the opposite side of the binnacle

Question 8 - Under the IALA-B Buoyage System, a conical buoy will be ...
) red in color
) numbered with an odd number
) left to port when entering from seaward
) All of the above

Question 9 - A facility used for the discharge of a cargo of a particular hazard, such as chlorine, butane or ethane, must have what to warn water traffic of an immediate danger during fire or cargo release?
) An emergency boat and crew
) A siren or rotating flashing light
) Flashing red lights located one-half mile upstream and downstream of the facility
) Buoys with flashing lights controlled from shore, located one-half mile upstream and downstream of the facility

Question 10 - When you are using the "OMEGA" navigation system which statement about a line of position is TRUE?
) Each line number is unique to a line of position on a chart.
) It is a line within a given lane and can be ambiguous if the proper lane is not known.
) A master and single slave can be used to form a line of position.
) If six stations are received, three possible LOP's are available for a fix.